Shingle-cutter.



No. 773,391' BATENTBD OCT. 25, 190,4.

- M. KNAPP.

SHINGLE CUTTER.

APPLICATION FILED AUG. 2, 1904.

N0 MODEL.

WITNESSES." N I/IVVENTOR 44W 9 'Maflfiz'as Kn app I BY M ATTORNEYSPatented. October 25, 1904.

UNITED STATES PATENT @EETCE.

MATTHIAS KNAPP, OF ENID, OKLAHOMA TERRITORY.

SHlNGLE-CUTTER.

SPECIFICATION forming part of Letters Patent No. 773.397, dated October25, 1904.

Applicati filed August 2, 1904:. Serial No. 219,167. (No model.)

T 0 all whmn it Tim/y concern:

Be it known that I, lVIATTl-IIAS KNAPP, a citizen of the UnitedStates,and a resident of Enid, in the county of Garfield and Territoryof Oklahoma, have made certain new and useful Im provements inShingle-Cutters, of which the following is a specification.

My invention relates to shingle-cutters, and is intended especially forthe purpose of trimming or cutting the course of shingles on the comb ofa roof.

The object of the invention is to produce a device which will beefficient, rapid in its operation. and easily applied. 7

The invention consists in the construction and combination of parts tobe more fully described hereinafter and definitely set forth in theclaims.

In the drawings, which fully illustrate my invention, Figure 1 is aperspective of the device, illustrating how it will be applied to aportion of a roof. Fig. 2 is a plan. Fig. 3 is a longitudinal verticalsection taken substantially on the line 3 3 of Fig. 2. Fig. 4 is a sideelevation.

Throughout the drawings and specification the same numerals of referencedenote like parts.

Referring more particularly to the parts, 1 represents the body of thedevice, which consists, as shown, of oppositely-disposed side plates 2and 3, which attach at their rear edges to flanges formed upon a backplate 4.

As illustrated, the side plates are maintained apart by distance piecesor studs 5.

The side plates 2 and 3 are substantially rectangular in form; but theyare formed with forwardly-tapered edges 6, so as to formoppositely-disposed rounded noses 7. Between the noses 7 a circular saw8 is mounted, the same being carried rigidly upon an arbor 9, as shown.One extremity of the arbor 9 is rotatably mounted in the side plate 3.The other extremity is reduced, as shown, and terminates in a taperedpoint 10, which is received in a cone-bearing formed in the end face ofan adjusting-screw 11, as shown. The arbor 9 is provided with acircumferential groove 12, around which passes a twisted 5 or crossedbelt 13, preferably of round or rope form. This belt passes. around apulley 1 L, rotatably mounted between the side plates 2 and 3, asindicated. The shaft or arbor of this pulley carries rigidly a pinion15. which pinion meshes with a main gear-wheel 16 to the arbor 17,whereof there is attached a crank 18 for operating the same. This arbor17 is preferably disposed between the sides or runs of the belt 13. Fromthe construction described it should be evident that if the crank 18 isrotated by hand in the direction of the arrow a movement will betransmitted to the saw 8in the direction indicated by the arrow adjacentthereto.

The device would be applied as shown in Fig. 1, the noses 7 operating asrests for the device, while the saw cuts its way through theprojectingportions of the upper course of shingles at the comb.

. In order to facilitate the manipulating of the device, I provide thestrap 19 or loop which is adapted to receive the left hand of thecarpenter, as shown. This loop is preferably attached to the outer faceof the side plate 2 in any suitable manner.

In order to enable the tension of the belt 13 to be adjusted, there isprovided an arm 20, pivoted at 21, preferably lying against the innerface of the side plate 3. This arm carries a tightening-pulley 22, whichmay be held in the path of the belt 13.. The tightening-pulley 22 ispreferably mounted upon a stud 23, which has a reduced outer extremity24, which projects through a curved slot or opening 25 in the side plate3 and is threaded for the attachment of a thumb-head 26. From thisarrangement the arm 20 may be locked at any position in the slot 25, soas to give any desired tension to the belt.

By forming the forward portions of the side plates with theforwardly-tapered edges (thus to constitute the noses 7) and by mountingthe saw near the noses or near the front end of said forward portionssaid saw is caused to project partly below the lowermost of said edgesto enable the cutting to be effected and also,partly above the uppermostof said edges to enable observations to be made, said lowermost edgesrunning on the work and causing the body part of the structure, with itscontained mechanism, to extend away from l tremity, a crank, means fordriving said saw the work conveniently for manipulation.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a shingle-cutting machine, a body having parallel forwardlytaperededges at the forward part thereof, forming opposite parallel noses, anda saw mounted near the end of said forward part, and projecting partlybelow the lowermost edges to effect the cutting of the work operatedupon, and partly above the uppermost edges for observation purposes, thesaid lowermost edges running on the work, and causing the said body andits contained mechanism to extend away from the work.

1n ashingle-cutting machine, a body having parallel forwardly-taperededges at the forward part thereof, forming opposite parallel noses, anda saw mounted near the end of said forward part, and projecting partlybelow the lowermost edges to effect the cutting of the work operatedupon, and partly above the uppermost edges for observation purposes, thesaid lowermost edges running on the work, and causing the said body andits contained mechanism to extend away from the work; said mechanismcomprising a rotatable arbor for the saw, a pulley, a belt passing oversaid pulley, and thence around the arbor to operate the latter, a crank,and devices connecting the crank and pulley for driving the latter at anincreased velocity,

3. In a shingle-cutting machine, in combination, a body having a taperedforward extremity, a circular saw mounted at said exfrom said crank, anda strap attached on the side of said body opposite to said crank andadapted to receive the operators hand.

L. in a device of the class described, in COlIllOlDdtlOD, a bodyconsisting of a pair of oppositely-disposed side plates having taperedforward extremities presenting oppositelydisposed noses, a circular sawhaving an arbor rotatably mounted between said noses, a pulley, a beltpassing about said pulley adapted to drive the arbor of said saw, apinion rigid with the said pulley, a main gear meshing with said pinion,a crank adapted to drive said. main gear, and a belt-tightener adaptedto adjust the tension of said belt.

.In a device of the class described, in combination, a body havingoppositely-disposed side plates with tapered forward eX- tremitiespresenting oppositely disposed noses, a circular saw having an arborrotatably mounted between said noses, a pulley, a crossed belt passingabout said pulley and adapted to drive said arbor, a pinion rigid withsaid pulley, a main gear meshing with said pinion, a crank adapted todrive said main gear, an arm pivotally attached to one of said sideplates, a tightening-pulley carried upon said arm and engaging saidbelt, said side plate adjacent to said arm having a curved slot andmeans for locking said arm in said curved slot.

BIATTITHIAS KNAPP.

l Vitnesses:

J. J. SMrrII, LEW S. FAGAN.

